Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22bfa597109ffa8…

MALICIOUS

PDF

32.7 KB Created: 2021-07-19 19:30:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 309b6615ff408765d863a9aded70f841 SHA-1: 7e34577791a0701f46090aeb991404a6e3c0d4a2 SHA-256: f22bfa597109ffa80072469df56cdd28d735d0828de92a35daab4a875d041035
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The document body includes phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' and 'Minecraft Games To Play For Free', indicating a lure to trick users into clicking the malicious links. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-games-to-play-for-free-game-hack In PDF document text
    • http://www.jureclomas.com.ar/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBC 21896 bytes
SHA-256: 791dc6cf2b98d83fd16f4b380ba79f7c8f83db3079a33ee81c78cccd24e8d681
font_01_sfnt_off00005dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC0 18380 bytes
SHA-256: e4e6021f190597b5ba2cc648d82e873dd3d7a425745f666e69b81b8efe23a832

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